fpr help! HELP!!!!!!!!!!!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

drifting_changed_mylife · 06-03-2009, 09:14 AM

when hooking up my sard fuel pressure regulator, i got kinda confused on which side of the fuel system it gets put on. like between the filter and rail, or the rail and return......... thanx

japslapsilvia · 06-03-2009, 09:16 AM

it goes on the return side.

slider2828 · 06-03-2009, 09:30 AM

Rail and the return..... On our system, the fuel is regulated on the return flow side after the fuel is injected into the rail.

drifting_changed_mylife · 06-03-2009, 09:50 AM

so i need to put it where the red circle is corect??

garbury · 06-03-2009, 09:57 AM

I think youve got your fuel flow backwards man. The return should be the fpr side. so youd put it where you currently have the fuel filter drawn. A lot of people mount the regulators on the strut tower or similar. You'd take an adapter for the fuel rail/stock fpr, and run a fuel hose to the fpr then the return line.

I just went nismo and threw a guage right above the fuel filter. threw up a crappy pic for reference, you can see where the fuel filter line goes under the rail and the fpr outbound line goes elsewhere. i know my bay is flithy, parents live on a dirt road and i just dont care, lol.

drifting_changed_mylife · 06-03-2009, 11:27 AM

^^^ thanks for the pic but i still dont get it...... i have a sard fpr and after all this i still dont understand....... can someone else try to elaberate.....

slider2828 · 06-03-2009, 11:41 AM

Geezus.... Fuel enters through the fuel filter to middle of the rail and returns OUT of the FPR back into the tank. If you have an adjustable FPR, then you REMOVE the stock FPR on the FRONT of the fuel rail, put a fitting there with a hose, attach to the aftermarket FPR to that hose and route back to the hardlines.....

This is just Replacing the stock FPR, it ain't rocket science... sheesh!

drifting_changed_mylife · 06-03-2009, 12:04 PM

Quote:

Originally Posted by slider2828

Geezus.... Fuel enters through the fuel filter to middle of the rail and returns OUT of the FPR back into the tank. If you have an adjustable FPR, then you REMOVE the stock FPR on the FRONT of the fuel rail, put a fitting there with a hose, attach to the aftermarket FPR to that hose and route back to the hardlines.....

This is just Replacing the stock FPR, it ain't rocket science... sheesh!

GOT IT!!!! thanks guys

06-03-2009, 09:14 AM	#1
drifting_changed_mylife Zilvia Junkie Join Date: Apr 2007 Location: RICHMONDHILL QUEENS Posts: 401 Trader Rating: (0) Feedback Score: 0 reviews	fpr help! HELP!!!!!!!!!!!!! when hooking up my sard fuel pressure regulator, i got kinda confused on which side of the fuel system it gets put on. like between the filter and rail, or the rail and return......... thanx __________________ your neg reps match my avitar.... keep em commin

06-03-2009, 09:30 AM	#3
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	Rail and the return..... On our system, the fuel is regulated on the return flow side after the fuel is injected into the rail. __________________ Turn and Burn!

06-03-2009, 09:50 AM	#4
drifting_changed_mylife Zilvia Junkie Join Date: Apr 2007 Location: RICHMONDHILL QUEENS Posts: 401 Trader Rating: (0) Feedback Score: 0 reviews	so i need to put it where the red circle is corect?? __________________ your neg reps match my avitar.... keep em commin

06-03-2009, 11:27 AM	#6
drifting_changed_mylife Zilvia Junkie Join Date: Apr 2007 Location: RICHMONDHILL QUEENS Posts: 401 Trader Rating: (0) Feedback Score: 0 reviews	^^^ thanks for the pic but i still dont get it...... i have a sard fpr and after all this i still dont understand....... can someone else try to elaberate..... __________________ your neg reps match my avitar.... keep em commin

06-03-2009, 11:41 AM	#7
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	Geezus.... Fuel enters through the fuel filter to middle of the rail and returns OUT of the FPR back into the tank. If you have an adjustable FPR, then you REMOVE the stock FPR on the FRONT of the fuel rail, put a fitting there with a hose, attach to the aftermarket FPR to that hose and route back to the hardlines..... This is just Replacing the stock FPR, it ain't rocket science... sheesh! __________________ Turn and Burn!

06-03-2009, 09:57 AM	#5
garbury Leaky Injector Join Date: Apr 2006 Location: Arizona Posts: 93 Trader Rating: (0) Feedback Score: 0 reviews	I think youve got your fuel flow backwards man. The return should be the fpr side. so youd put it where you currently have the fuel filter drawn. A lot of people mount the regulators on the strut tower or similar. You'd take an adapter for the fuel rail/stock fpr, and run a fuel hose to the fpr then the return line. I just went nismo and threw a guage right above the fuel filter. threw up a crappy pic for reference, you can see where the fuel filter line goes under the rail and the fpr outbound line goes elsewhere. i know my bay is flithy, parents live on a dirt road and i just dont care, lol.